package com.jcompressor.faces.utils;

/*
 * Copyright (c) 2011, Scott Carnett
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
 * following conditions are met:
 * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
 * following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
 * following disclaimerin the documentation and/or other materials provided with the distribution.
 * * Neither the name of jcompressor nor the names of its contributors may be used to endorse or promote products
 * derived from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;

import com.jcompressor.exceptions.JcompressorException;

/**
 * @author Scott Carnett
 */
public class JcompressorUtils {
	
	/**
	 * Gets the configuration url
	 * @param file the configuration file
	 * @return URL with the configuration url
	 */
	public static URL getConfigurationUrl(final String file) {
		try {
			/*
			final URL url = JcompressorResources.getResourceLoader().getResource(file);
			if (url != null) {
				return url;
			}
			*/
			
			return null;
		}
		catch (Exception e) {
			throw new JcompressorException("Configuration not found", e);
		}
	}
	
	/**
	 * Opens a url stream
	 * @param url the url
	 * @return {@link InputStream} with the url stream
	 */
	public static InputStream openStream(final URL url) {
		try {
			final URLConnection connection = url.openConnection();
			connection.setUseCaches(false);
			return connection.getInputStream();
		}
		catch (Exception e) {}
		return null;
	}
	
}